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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Libunwind needs a way to disable visibility annotations [PATCH INCLUDED]"
href="https://bugs.llvm.org/show_bug.cgi?id=33576">33576</a>
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<th>Summary</th>
<td>Libunwind needs a way to disable visibility annotations [PATCH INCLUDED]
</td>
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<th>Product</th>
<td>libc++
</td>
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<th>Version</th>
<td>unspecified
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Linux
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>enhancement
</td>
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>All Bugs
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>thomasanderson@google.com
</td>
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org, mclow.lists@gmail.com
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<pre>Created <span class=""><a href="attachment.cgi?id=18700" name="attach_18700" title="patch">attachment 18700</a> <a href="attachment.cgi?id=18700&action=edit" title="patch">[details]</a></span>
patch
libc++ and libc++abi both have _LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS and
_LIBCXXABI_DISABLE_VISIBILITY_ANNOTATIONS respectively.
The same feature is needed for libunwind. This way, apps that statically link
libunwind can hide its symbols (otherwise libgcc will use the libunwind symbols
and crash).</pre>
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